Today's weather on 23 Feb shows a "summer storm" developing in upper Thailand. Cold air masses are expected to move over the upper Northeast and the South China Sea today. Thunderstorms are forecasted.Strong winds.
On 23 Feb 2026, the Facebook pageof the Meteorological Departmentreleased regional weather forecasts along with risk prediction maps for the day at 06:00.
24-hour weather forecast (23 Feb 2026).
Upper Thailand will experience a summer storm characterized by thunderstorms, gusty winds, and possible lightning in some areas. This is due to high pressure or cold air masses that have spread over northern Vietnam and southern China. These are expected to move over the upper Northeast and South China Sea today (23 Feb 2026).
This causes southerly and southeasterly winds to cover the Northeast, Central, East regions, and the Gulf of Thailand. Meanwhile, upper Thailand remains hot. Residents in these areas are advised to be cautious of summer storms by avoiding open spaces, large trees, weak structures, and billboards. Farmers should strengthen fruit trees and prepare to prevent damage to crops and livestock, while also taking care of their health during hot weather.
In the South, scattered thunderstorms are expected due to easterly and southeasterly winds covering the Gulf of Thailand, the South, and the Andaman Sea. Wind waves in the lower Gulf of Thailand are moderate, with wave heights of 1-2 meters; where thunderstorms occur, waves exceed 2 meters. Mariners in the Gulf of Thailand and Andaman Sea should navigate with caution.
Currently, dust accumulation or haze in upper Thailand is moderate to fairly high, due to weak to moderate air ventilation.
7-day weather forecast.
From 23 to 25 Feb 2026, upper Thailand will have summer storms starting in the Northeast. Later, the North, Central regions, including Bangkok metropolitan area and the East, will be affected. These storms will feature thunderstorms, strong gusts, hail, heavy rain in some places, and possible lightning. Afterwards, temperatures will cool down due to high pressure or cold air masses from China moving over the Northeast and South China Sea.
This results in southerly and southeasterly winds covering the Northeast, Central, East, and Gulf of Thailand, along with westerly wind waves passing over the North and Northeast. Upper Thailand remains hot. The South will still have scattered thunderstorms due to easterly and southeasterly winds over the Gulf of Thailand, South, and Andaman Sea. Wind waves in the Gulf and Andaman Sea are weakening, with waves about 1 meter high; where thunderstorms occur, waves exceed 2 meters.
From 26 Feb to 1 Mar 2026, upper Thailand will have hot daytime weather with occasional thunderstorms due to low pressure caused by heat covering the area. Southerly and southwesterly winds will continue to bring moisture over upper Thailand.
The South will still have scattered thunderstorms due to easterly and southeasterly winds over the Gulf of Thailand, South, and Andaman Sea. Wind waves in these areas are weakening, with waves about 1 meter high; where thunderstorms occur, waves exceed 2 meters.
Precautions: From 23 to 25 Feb 2026, people in upper Thailand should beware of dangers from thunderstorms, strong gusts, hail, and lightning by avoiding open spaces, large trees, and unstable billboards. They should also avoid traveling through storm areas during this period. Farmers should strengthen fruit trees and prepare to prevent damage.to agricultural crops.and livestock, as well as take care of their health during changing weather conditions.
Earthquake situation (22 - 23Feb 2026): Earthquakes measuring 2.1 occurred with epicenters in Myanmar, 4.0 in northern Sumatra, Indonesia, and 3.7 in Vietnam. These events have no impact on Thailand.
Thanks to the Facebook page of the Meteorological Department for the information.